/* 手机端 */
@media(max-width: 620px) {
    .content{
        width:100%;
        display: flex;
        flex-wrap: wrap;
        background-color :#f6faf8;
        display: flex;
        justify-content: center;
    }
}

/* 平板端 */
@media screen and (min-width:620px) and (max-width:980px) {
    .content{
        width:100%;
        display: flex;
        flex-wrap: wrap;
        background-color: #f6faf8;
        display: flex;
        justify-content: center;
    }
}

/* 电脑端 */
@media(min-width: 980px) {
    .content {
        width: 100%;
        background-color: #ffffff;
    }
}